D4-9 is designed to be fastened to the floor or freestanding

Comes standard with a mobile caster kit， drip trays， mobile jack tray， aluminum approach ramps， hardened steel tire stops and hard rubber wheel chocks

Boxed-steel columns are made from structural 4.75 in. x 4.75 in. welded steel tubing

Columns feature 12 in. x 12 in. baseplates 5/8 in. thick

Reliable and safe manual dead-bolt locks are machined directly into the boxed-steel columns

3/4 in. thick steel safety locks are spring loaded for automatic and solid engagement

13 positive locking positions are spaced every 4 in.

Secondary slack-cable lock system assures instant back-up safety lock engagement in the event of a cable failure

Exterior steel sleeves with UHMV slides surround each column to ensure positive contact and containment

Welded-steel runways feature utility rail for jack tray and drip trays and other accessories

Built-in flow restriction integrated into the hydraulic cylinder to prevent free-fall

Oversize baseplates and pull-perimeter cross tube sleeves reduce lateral movement and sway when lift is free-standing

Low-profile runways are only 5 in. H to accommodate low ride-height vehicles

Hardened steel safety lock linkages use 3/8 in. molded carbon steel rod ends to reduce flex and twist to ensure positive locking and smooth operation

Precision， reinforced rod ends with spherical bearings are protective coated for corrosion resistance and are designed to provide low friction and high wear resistance

5/8 in. thick top caps

Pull out tire stops on both ends of the lift that allows drive through capability

Stainless steel lifting cables are rated to handle over 14，000 lbs. each